Is blurring or pixelation more secure?

Neither is inherently safe if applied lightly. What matters is strength: both must destroy enough detail that nothing recognizable remains. For the most sensitive cases, a solid block over the area is the safest option.

Does blurring a face also remove the photo's location data?

Not by itself. Blurring only changes visible pixels. To drop GPS and device metadata, export a redrawn copy or run the photo through a metadata remover.

Do these tools upload my images?

No. Utilumo's image tools decode, edit, and export pictures inside the browser tab. The files are never uploaded or stored on a server.

Guide1 min readUpdated June 25, 2026

How to blur faces in photos before sharing

Short answer

To hide a face before sharing, cover it with a strong blur or pixelation that destroys the underlying detail, then export a fresh copy. For sensitive cases, a solid block is safer than a light blur, which can sometimes be partly reversed.

Blur vs pixelate

Both blur and pixelation hide detail by averaging nearby pixels. Pixelation replaces an area with large blocks of a single color; blur smooths it into a soft smear. For most everyday sharing, either is fine when applied strongly enough that no recognizable feature remains.

Light redaction can be reversedA weak blur or coarse pixelation over text or a small face can sometimes be partly reconstructed. For anything sensitive, use a strong setting or cover the area with a solid shape so no original detail survives.

Step by step

Open the photo in a local editorUse a tool that edits the image in your browser so the original never leaves your device.
Choose blur or pixelate and set a strong strengthPick a brush size that comfortably covers each face or plate, and increase the strength until no feature is recognizable.
Cover every sensitive areaFaces, name badges, license plates, house numbers, screens, and documents in the background are all easy to miss.
Export a fresh copySave a new file rather than overwriting the original, so you keep an unredacted master if you need it.

Try it: Blur FacesManually blur faces and details with a brush. The image stays in your browser.Open tool

Do not forget the metadata

Blurring a face hides what is visible, but the file can still carry hidden GPS coordinates and device details in its metadata. Redrawing the image to canvas on export removes that metadata, but it is worth confirming. See What is EXIF metadata?.